用RTDS小步长算法仿真换流阀合成试验回路  

Simulating the thyristor valve synthetic test circuit with RTDS small step algorithm

作　　者：王峥夏 周鹏鹏 贾德峰 庄良文 李书琰 

机构地区：[1]许昌开普电器检测研究院,河南许昌461000 [2]许昌供电公司,河南许昌461000

出　　处：《电力系统保护与控制》2013年第6期128-133,共6页Power System Protection and Control

摘　　要：为了检验换流阀合成试验回路控制和保护系统的性能,给出一种在RTDS上用小步长算法对合成试验回路一次系统进行建模仿真的方法。分析了换流阀合成试验回路的工作原理,得出其对控制保护系统的需求,使用RTDS小步长算法来建立合成试验回路一次系统模型。并针对该算法用于合成回路试验仿真时的限制,尤其是在低电压仿真中的不足,采用提高换流变电压的方法来"等效模拟",能够正确仿真电压源和电流源的配合工作工程。仿真结果表明,使用RTDS小步长算法建立的模型能准确模拟阀的实际工况,仿真试验环境成功进行了合成试验回路的所有试验,取得了良好的试验效果。In order to test the performance of control and protection of thyristor valve synthetic test circuit （STC）, small step algorithm is put forward in the modeling process of the primary system of STC. This paper analyzes the operating principle of the STC, works out its requirements for the control and protection system, and sets up the STC primary system model with RTDS small step algorithm. This paper aims at the restrictions of small step algorithm in simulating the STC, especially in the low voltage simulation, and proposes ＂equivalent simulation＂ by raising the converter transformer voltage, so the interaction process between voltage source and current source can be simulated correctly. The results of simulation test show that the model established with RTDS small step algorithm can imitate the valve＇s operating condition accurately. All the tests of the synthetic test circuit are conducted successfully in the simulation test environment, and reach a good trial effect.

关 键 词：换流阀合成试验回路 RTDS仿真 小步长算法 低电压仿真 等效模拟 

分 类 号：TM743[电气工程—电力系统及自动化]